To check or prove the accuracy of something.
In the Lead Generation industry, validate is used for a number of things, but most commonly used when referring to fields on a form. Each field on a form can be coded to only accept certain values, ensuring they are valid inputs. For example, an email field can be validated by requiring the input to include an @ symbol and a “.”. It can be further validated by validation services to ensure the email address is in-fact a live email that can receive marketing communication.